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Best source for programming HP35s calculator

What’s the best resource—whether a website, book, or other guide—for adding survey programs to my HP35s calculator?

PPI used to have a fantastic book with all the programs you'd need, including checksums to make sure you didn't fat-finger somewhere along the way.

I've got a pdf I could probably post somewhere if you want to go the tedious route of doing it yourself.

The HP 35s Calculator—A Field Surveyor's Companion: Part 1—Point Storage

First I was Hopeful that I could help

But then I got hit with the 404

https://amerisurv.com/wp-content/uploads/PDF/TheAmericanSurveyor_Foose-HP35sPointStorage_September2014.pdf

Anyway, if you look around you may find the articles. I enjoyed punching them in but never really used them.

do it, I would like a look also

Yeah this would be great. I plan on keying the programs in myself.

Best one I know of it attached.